20271-37-8Relevant academic research and scientific papers
Synthesis of 1,4,5-trisubstituted-1,2,3-triazoles via coupling reaction of diaminomaleonitrile with aromatic diazonium salts
Al-Azmi, Amal,Kalarikkal, Anita K.
, p. 11122 - 11129 (2013)
A mild procedure for the preparation of 2-(5-amino-1-aryl-1H-1,2,3-triazol- 4-yl)-2-iminoacetonitriles and 2-(5-amino-1-aryl-1H-1,2,3-triazol-4-yl)-2- oxoacetonitriles was achieved by the reaction of diaminomaleonitrile and phenyl/substituted phenyl diazonium chlorides. 4-Nitrophenyl diazonium chloride afforded 2-amino-3-(3-(4-nitrophenyl)triaz-1-en-1-yl)maleonitrile. Triazole iminoacetonitrile and maleonitrile derivatives were reacted further with excess acetone and benzaldehyde with a catalytic amount of 1,8-diazabicyclo[5.4.0] undec-7-ene to yield 5-(5-imino-2,2-dimethyl-2,5-dihydrooxazol-4-yl)-3-aryl-3H- 1,2,3-triazol-4-amine and (E)-N-benzylidene-5-(5-imino-2-aryl-2,5-dihydrooxazol- 4-yl)-3-aryl-3H-1,2,3-triazol-4-amine, respectively. Two competitive reactions, i.e., nucleophilic substitution and nucleophilic addition, were observed when triazole oxoacetonitrile and maleonitrile derivatives were reacted with hydroxylamine hydrochloride in the presence of sodium acetate.
Synthesis and in vitro and in silico studies of 1H- and 2H-1,2,3-triazoles as antichagasic agents
Bello, Murilo L.,Campos, Vinicius R.,Faria, Ana F. M.,Faria, Robson X.,Ferreira, Vitor F.,Forezi, Luana da S. M.,Galv?o, Raíssa M. S.,Ji, Kathya N. K.,Petzold Pauli, Fernanda,Resende, Jackson A. L. C.,Silva, Thais B.,da Silva, Fernando de C.
, (2021/09/01)
1,2,3-triazole heterocycles stand out in medicinal chemistry for having great structural diversity and bioactivities. In this study, two series of triazoles were synthesized. One was obtained by the 1,3-dipolar cycloaddition reaction between ethyl cyanoac
Ruthenium-catalyzed synthesis of 5-amino-1,2,3-triazole-4-carboxylates for triazole-based scaffolds: Beyond the Dimroth rearrangement
Ferrini, Serena,Chandanshive, Jay Zumbar,Lena, Stefano,Comes Franchini, Mauro,Giannini, Giuseppe,Tafi, Andrea,Taddei, Maurizio
, p. 2562 - 2572 (2015/03/18)
The 5-amino-1,2,3-triazole-4-carboxylic acid is a suitable molecule for the preparation of collections of peptidomimetics or biologically active compounds based on the triazole scaffold. However, its chemistry may be influenced by the possibility of under
NEW METHOD FOR STUDYING THE REACTIVITIES OF α-DIAZO IMINES. INVESTIGATION OF THE CYCLIZATION OF N-SUBSTITUTED 2-DIAZOACETAMIDINES TO 1,2,3-TRIAZOLES
Dankova, E. F.,Bakulev, V. A.,Krut'ko, D. P.
, p. 607 - 613 (2007/10/02)
N-Substituted diazoacetamidines were generated in the reaction of N-substituted acetamidines with benzenesulfonyl azide.It is shown that their cyclization to isomeric 1,2,3-triazole characterizes the reactivities of α-diazo imines.The synthesis of 5-amino
Studies on v-Triazoles. Part I: Synthesis of 4,9-Dihydro-9-oxo-1H-v-triazolo quinolines by cyclization of 5-arylamino-v-triazole-4-carboxylic acids with polyphosphoric acid.
Buckle, Derek R.
, p. 3870 - 3874 (2007/10/02)
The cyclization of 5-arylamino-v-triazole-4-carboxylic acids with polyphosphoric acid leads to high yields of the corresponding 4,9-dihydro-9-oxo-v-triazolo quinolines which are potent antiallergic agents.
Triazolo [4,5-b] quinolines and prophylaxis of allergic diseases with them
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, (2008/06/13)
The invention provides novel compounds of formula (I). STR1 and pharmaceutically acceptable salts thereof wherein R1, R2, R3 and R4 which may be the same or different, represent hydrogen, halogen, lower alkyl, and lower alkoxy, or any adjacent two of R1 to R4 taken together represent an alkylene group containing from 3 to 5 carbon atoms or a 1,4-buta-1,3-dienylene group. The compounds are useful as anti-allergic agents.
